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Liquidity Risk A challenging issue for the supervisory community

This article examines the history and current state of liquidity risk management, including the Basel II framework and the challenges faced by supervisors. It also discusses the importance of modeling liquidity risk and the similarities and differences between Basel II and Solvency II. The article concludes with an overview of the Basel approach on liquidity and the deliverables of the Working Group on Liquidity.

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Liquidity Risk A challenging issue for the supervisory community

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  1. Liquidity RiskA challenging issue for the supervisory community Gerhard Stahl, BaFin

  2. Agenda • History • CFI and internal models – Where we stand • Plans for the future – Where to go Liquidity Risk | Seite 2

  3. Liquidity Risk – What happened so far? • History • From supervisory side: • Basel paper of 2000 • Joint Forum exercise • European stock takings via the Groupe de Contact • Stock take of the ECB, via the Banking Supervision Committee, on mainly macro prudential aspects of Liquidity Risk • National authorities: OCC, FSA, BaFin (internal models), … • Pillar II issue under Basel II • From banking side: • IIF 44 recommendations Liquidity Risk | Seite 3

  4. Spot Futures, FRA‘s Swaps Options Exotics, Structured Deals Structured credit, credit derivatives CFI and Internal Models Gapping & Duration MtM & modified duration First-order Sensitivities Volatility, delta, gamma, vega, theta Correlations, basis risk Model risk (inc. smiles, calibration) Liquidity Risk | Seite 4

  5. Modeling Liquidity Risk • Metallgesellschaft (Miller vs. Ross) • S&L Crisis • Liquidity risk is of 2nd order • Data quality (better then CR worse then MR) • LIqVaR • ARIMA modeling unscheduled payments Liquidity Risk | Seite 5

  6. Basel II & Solvency II: Similarities and Differences Liquidity Risk | Seite 6

  7. What is a good measure of risk? • SM are weakly coherent • Backtest-ability • Clear substantial meaning • Robustness • good scaling behavior (time, level of significance, portfolios, ...) - risk silos, different users • Valuation of assets is key (marked to market, marked to model, best estimate,…) • Multi-period vs. one-period models • USE TEST Liquidity Risk | Seite 7

  8. Economic Capital – Stakeholders • Bondholders • Shareholders • Regulators • Rating agencies • Managers • - different time horizons(!!) • - different levels of significance (!) • - complexity of the firm, e.g. a holding (!!!) => copula, consistent modeling,…. Liquidity Risk | Seite 8

  9. Boardsponsor Risks ERM/CRSA Riskpolicy Risks Peoplebuy-in CRO Identification Review TIME COST OBJECTIVESStrategy and KPIs Threats Opportunities EMBED VALUES Management Assessment Impact What is Risk Management Process about? Liquidity Risk | Seite 9

  10. The Basel approach on liquidity • Berlin meeting in May 2006 – Committee should exercise an „intelligent“ stock take on current liquidity regimes of Members • December meeting 2006 – final agreement on establishing the Working Group on Liquidity • Tough time table – stock take to be finished until the end of 2007 • First meeting in January • Drafting session for the Questionnaire • Questionnaire fully taken over by Groupe de Contact • Questions of other groups considered  No double work Liquidity Risk | Seite 10

  11. A brief outline of the work I • Objectives – what do the standards seek to achieve: • Level of resilience to risk • Externalities/market failures addressed • Practice – what standards are applied and how • ‘Pillar 1 approaches’ – quantitative standards • ‘Pillar 2 approaches’ – qualitative standards • Validation of firms risk management/modeling • ‘Pillar 3 approaches’ – Disclosure requirements • Interaction with capital requirements Liquidity Risk | Seite 11

  12. A brief outline of the work II • Experience with application of standards • For domestic firms • For branches, subsidiaries, and cross-border firms • Relationship with other financial infrastructure (“context”) • General supervisory approach • Central bank operations and policies • Payment system design • Collateral management • Capital requirements • Structure of domestic and (relevant parts of) international banking system • Asset market dynamics • Credit risk transfer markets Liquidity Risk | Seite 12

  13. Deliverables • Better understanding of the outcome delivered by current liquidity regimes for domestic and cross-border firms • To provide the Committee with an analysis of: • the reasons for the current diversity of approach • the advantages and disadvantages of diversity • an assessment of options for future work Liquidity Risk | Seite 13

  14. Work streams and literature survey • What are the diverse standards trying to achieve? How much underlying uniformity is there? • How is context (e.g. structure of banking sector, central bank policy, design of payment system) influencing regimes? • How has the changing financial system affected liquidity risk? • Analysis of consequences of diversity • For firms • For ‘day-to-day’ supervision (resilience to mild stress) • For crisis management (resilience to extreme stress) • Literature survey to complete the picture from the scientific point of view Liquidity Risk | Seite 14

  15. Timeline Work on Liquidity Risk 9 April deadline for the responses to the questionnaire April - June evaluation of the responses June - October drafting of the report December delivery to the Basel Committee nearly parallel timetable of GdC‘s Liquidity Task Force The Basel Committee has to decide, whether further work on liquidity risk will be treated within the Basel context. Liquidity Risk | Seite 15

  16. All models are wrong but some are useful Liquidity Risk | Seite 16

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